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Start in an environment where there are no distractions
Give the dog the treat or place it on his mat.
Your dog should be redirecting toward you when you make your noise. Keep in mind this noise is to interrupt your dog when he is “on the way” to getting into trouble, not after he has already found it. For example, if you see someone pull into the driveway and your dog is inclined to run to the door as soon as they walk down the path, make your noise right away. Don’t wait until your dog has already made it to the door and lost his mind.